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Find Second story addition builders in Whippany

Stephen Home Improvement Contractors LLC

No reviews yet

Stephen Home Improvement Contractors LLC

No reviews yet
10 years of experience

Count on us for all your home renovation needs. You may contact us in Newark, NJ, for more details about our services.

Count on us for all your home renovation needs. You may contact us in Newark, NJ, for more details about our services.


rams home improvement

No reviews yet

rams home improvement

No reviews yet
42 years of experience

work alone or with 1 or 2 helpers.charge by the hour or the amount of work

work alone or with 1 or 2 helpers.charge by the hour or the amount of work


Project Management Inc.

No reviews yet

Project Management Inc.

No reviews yet
13 years of experience

Don't start your renovation project without consulting with Project Management Inc. We protect you against cost over runs, delays and contractor mistakes.

Don't start your renovation project without consulting with Project Management Inc. We protect you against cost over runs, delays and contractor mistakes.


Avatar for AJ Perri

AJ Perri

4.30(
1,538
)

AJ Perri

4.30(
1,538
)
Customers say: Super punctual
55 years of experience

For fast and exceptional service for all of your heating, cooling or plumbing needs, call us now: 732-333-3655! Since 1971, A.J. Perri has been proudly serving New Jersey homeowners and businesses across Bergen*, Essex, Mercer, Middlesex, Monmouth, Morris*, Ocean*, Somerset, Passaic*, Hudson*, Sussex*, and Union counties. With over 50 years of experience in heating, air conditioning, plumbing, and indoor air quality systems, A.J. Perri stands behind every installation, service and product with an unmatched 100% satisfaction guarantee. A.J. Perri offers you peace of mind and an established reputation for reliability, quality, and excellence in customer service. You can trust A.J. Perri to take care of your furnace, air conditioner or plumbing repair, service, or replacement. A.J. Perri can also help you with your heat pump, air handler, ductless split system, water heater or purification, sump pump, air cleaner, air filtration system, humidifier, and air ducts. Contact us if you have any questions about service in your area. Service offered 24/7/365. For more information: call or email us at info@ajperri.com. *Additional info: Not all services available in all areas. License# 19HC00103100, 36BI01256600, PA- PA126178

"I paid an excessive amount of money to replace the heating system. The sales rep gave us comfort that everything will be done right and the two experienced and fully licensed professionals will be doing the work and that there is a no-excuse warranty, 1 degree guarantee, and 10 years on both the service and hardware. It just so happened that after the install, I told the installer I smelt gas and to check everything. He simply waved it off and said it's fine, give it some time. I told AJ Perri multiple times that there is a gas leak and I asked them to rectify the situation. I called them multiple times to send someone to fix the issue immediately and urgently, but they refused to commit to any resolution and won't send anyone until the gas is turned off for the whole building. I explained that its a condo and that the unit itself in the utility closet has a separate gas shutoff valve. Knowing this, they refused to remediate the gas leak."

Richard S on February 2026

For fast and exceptional service for all of your heating, cooling or plumbing needs, call us now: 732-333-3655! Since 1971, A.J. Perri has been proudly serving New Jersey homeowners and businesses across Bergen*, Essex, Mercer, Middlesex, Monmouth, Morris*, Ocean*, Somerset, Passaic*, Hudson*, Sussex*, and Union counties. With over 50 years of experience in heating, air conditioning, plumbing, and indoor air quality systems, A.J. Perri stands behind every installation, service and product with an unmatched 100% satisfaction guarantee. A.J. Perri offers you peace of mind and an established reputation for reliability, quality, and excellence in customer service. You can trust A.J. Perri to take care of your furnace, air conditioner or plumbing repair, service, or replacement. A.J. Perri can also help you with your heat pump, air handler, ductless split system, water heater or purification, sump pump, air cleaner, air filtration system, humidifier, and air ducts. Contact us if you have any questions about service in your area. Service offered 24/7/365. For more information: call or email us at info@ajperri.com. *Additional info: Not all services available in all areas. License# 19HC00103100, 36BI01256600, PA- PA126178

"I paid an excessive amount of money to replace the heating system. The sales rep gave us comfort that everything will be done right and the two experienced and fully licensed professionals will be doing the work and that there is a no-excuse warranty, 1 degree guarantee, and 10 years on both the service and hardware. It just so happened that after the install, I told the installer I smelt gas and to check everything. He simply waved it off and said it's fine, give it some time. I told AJ Perri multiple times that there is a gas leak and I asked them to rectify the situation. I called them multiple times to send someone to fix the issue immediately and urgently, but they refused to commit to any resolution and won't send anyone until the gas is turned off for the whole building. I explained that its a condo and that the unit itself in the utility closet has a separate gas shutoff valve. Knowing this, they refused to remediate the gas leak."

Richard S on February 2026


ABBOT O'REILLY CONTRACTING

No reviews yet

ABBOT O'REILLY CONTRACTING

No reviews yet
31 years of experience

We have over 20 years experience in the field and incorporated since 1995, licensed, insured, bonded and a member of the BBB

We have over 20 years experience in the field and incorporated since 1995, licensed, insured, bonded and a member of the BBB


Cervantes inc

5.00(
1
)

Cervantes inc

5.00(
1
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Cervantes Inc LLC is a full-service remodeling and building contractor. We offer a variety of services from and kitchen/bath to complete home remodels. At Cervantes Inc we strive to offer quality products in a timely manner to insure one-on-one service with the customer.

"Hector was very efficient and took his time. He did an amazing job and will definitely be using his services again."

Sierra B on May 2024

Cervantes Inc LLC is a full-service remodeling and building contractor. We offer a variety of services from and kitchen/bath to complete home remodels. At Cervantes Inc we strive to offer quality products in a timely manner to insure one-on-one service with the customer.

"Hector was very efficient and took his time. He did an amazing job and will definitely be using his services again."

Sierra B on May 2024


Avatar for Schaffer Structural Systems

Schaffer Structural Systems

5.00(
4
)

Schaffer Structural Systems

5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Family own & operated.

"The old fence was removed; the ground regraded in several spots; the new rail post & rail fence installed including two gates. All the old fencing materials were taken away and a through cleanup performed. This all as per their price and performance quote."

Joseph S on April 2023

Family own & operated.

"The old fence was removed; the ground regraded in several spots; the new rail post & rail fence installed including two gates. All the old fencing materials were taken away and a through cleanup performed. This all as per their price and performance quote."

Joseph S on April 2023


Avatar for Jeffrey LeFevre

Jeffrey LeFevre

No reviews yet

Jeffrey LeFevre

No reviews yet
33 years of experience

Tile craftsman, Jeffrey LeFevre, also trading as Versatile Interiors. In business for over 20 years. Please visit the business website www.versatileinteriors.com for pictures of completed work and comments submitted by customers.

Tile craftsman, Jeffrey LeFevre, also trading as Versatile Interiors. In business for over 20 years. Please visit the business website www.versatileinteriors.com for pictures of completed work and comments submitted by customers.


Bond Construction

No reviews yet

Bond Construction

No reviews yet
14 years of experience

Bond Construction is a complete, full service, interior contractor specializing in remodeling and new construction of fine residential and commercial projects in New York City.

Bond Construction is a complete, full service, interior contractor specializing in remodeling and new construction of fine residential and commercial projects in New York City.


Avatar for FILIPE CUSTOM WOODWORK INC.

FILIPE CUSTOM WOODWORK INC.

4.60(
5
)

FILIPE CUSTOM WOODWORK INC.

4.60(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Filipe Custom Woodwork, Inc. was founded in 1988 by Filipe Agostinho. With 24 years experience in the woodworking industry, Filipe Agostinho has become well known for his high quality standards in the fabrication of architectural woodwork, custom cabinets and furniture. From its modest start of 2 employees in a 200 square foot shop in 1988, to 16 employees and a spacious 16,000 square foot factory and showroom, Filipe Custom Woodwork, Inc., offers complete involvement from planning, designing, fabrication and installation of any woodwork project. It is this experience that has allowed some of our clients to experience substantial savings through proposed alternates for a given project. The advantage of using a firm with design and construction qualifications is especially important today. Filipe Custom Woodwork, Inc., can help you get the most for your project dollar.

Filipe Custom Woodwork, Inc. was founded in 1988 by Filipe Agostinho. With 24 years experience in the woodworking industry, Filipe Agostinho has become well known for his high quality standards in the fabrication of architectural woodwork, custom cabinets and furniture. From its modest start of 2 employees in a 200 square foot shop in 1988, to 16 employees and a spacious 16,000 square foot factory and showroom, Filipe Custom Woodwork, Inc., offers complete involvement from planning, designing, fabrication and installation of any woodwork project. It is this experience that has allowed some of our clients to experience substantial savings through proposed alternates for a given project. The advantage of using a firm with design and construction qualifications is especially important today. Filipe Custom Woodwork, Inc., can help you get the most for your project dollar.

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FAQs for second story addition building service projects in Whippany, NJ

For many homeowners, building up is worth the expense because it provides the extra bedrooms or living areas that can’t be accommodated within the existing footprint. A larger, updated home often commands a higher resale price, recouping a sizable share of the project cost while allowing you to stay in the neighborhood you love. Run the numbers with a real estate agent and contractor to ensure the expected return and day-to-day benefits align with your goals.

Whether it makes more sense to build up or out depends on your lot, budget, and local code. Building up preserves yard space and involves less foundation work, but you may need to vacate the home during construction. Building out avoids staircases and can proceed while you stay put; however, it encroaches on the yard and may face setback limits. Compare both options with your contractor before making a decision.

A structural engineer will first inspect the existing foundation for cracks, footings, and load capacity. Depending on the findings, the crew may pour new concrete footings, install steel or concrete piers, add reinforced beams, or tie additional rebar into the slab. These upgrades redistribute the weight of the new floor and bring the structure up to code. Your contractor will outline the specific reinforcement plan and timeline once the engineering report is complete.

The Whippany, NJ homeowners’ guide to second story addition building services

From average costs to expert advice, get all the answers you need to get your job done.